1.py

def draw_line(a, b, c):
    if c == True:
        print(b*a)
    else:
        for i in range(a):
            print(b)

draw_line(20, '@', False)

2.py

def draw_rectangle(l, h, r, s):
    print(l*r)
    for i in range(h - 2):
        print(r + s * (l-2) + r)
    print(l*r)

draw_rectangle(5, 4, '*', '@')

3.py

a = int(input('vvedit chyslo: '))

def is_common(a):
    c = 0
    for i in range(1, a + 1):
        if a % i == 0:
            c += 1
    if c == 2 or a == 1:
        return(True)
    else:
        return(False)

print(is_common(a))

4.py

a = int(input('vvedit chyslo 1: '))
b = int(input('vvedit chyslo 2: '))

def is_common(a, b):
    c = 0
    if a > b:
        for i in range(b + 1, a):
            c += i
    elif a < b:
        for i in range(a + 1, b):
            c += i
    return c
print(is_common(a, b))

5.py

a = [3, 4, 5, 6, 7]

def is_common(a):
    c = 0
    for i in range(len(a)):
        c += a[i]
    c /= len(a)
    return c

print(round(is_common(a), 2))

6.py

a = [3, 4, 5, 6, 7]

def is_common(a):
    print(max(a), a.index((max(a))))
    print(min(a), a.index((min(a))))

is_common(a)